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Contains:  M 92, NGC 6341
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Messier 92, 





    
        

            Daniel.P
Messier 92

Messier 92

Technical card

Resolution: 3040x2024

Dates:May 24, 2017

Frames: 8x900" -12C bin 1x1

Integration: 2.0 hours

Darks: ~7

Flats: ~5

Bias: ~20

Avg. Moon age: 27.98 days

Avg. Moon phase: 2.70%

Mean SQM: 21.40

Astrometry.net job: 1615865

RA center: 259.292 degrees

DEC center: 43.145 degrees

Pixel scale: 0.700 arcsec/pixel

Orientation: 97.526 degrees

Field radius: 0.355 degrees

Locations: Duc, Prayssas, Lot et Garonne, France

Data source: Backyard

Description

I did not expected that M92 was such nice globular cluster.

Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- backgroung color neutralisation
- color calibration using cluster
- sky background removal (DBE in PI)
- slight deconvolution (masked background and saturated stars)
- non linear image creation
- green neutral
- color saturation boost masked and background desaturation
- TGV denoise (with high signal zone protection)
Final image :
- jpeg calibration done in Mac Photo (levels adjust and further saturation boost and color balance)

Comments

Author

Daniel.P
Daniel.P
License: None (All rights reserved)
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Messier 92, 





    
        

            Daniel.P